Introductory Physics Homework Help Forum

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Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
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Homework Help Guidelines for Students and Helpers
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Hey! I posted in homework help but now it's gone!
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Homework Help: Introductory Physics Formulary
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Why does this not work? Projectile Motion problem for Dynamics Class
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203
Flux from magnet
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Length element in Ampere's law
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31
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277
Induced polarization for collision between conducting spheres
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At what time after t does the object again pass its initial position?
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14
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59
Acceleration of Uranium 238 ion through a potential difference
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25
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Electrostatic equilibrium problem
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6
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Derivation for capacitance of cylindrical capacitor
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Is there an alternate symbol for mu for x 10^-6 ?
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86
Which of these is correct when the absolute temperature of a gas is doubled?
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Why is temperature constant after gas has expanded?
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33
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Finding ##v## for four particles after being released from square
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24
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194
Finding the final speed of a space probe using work and kinetic energy
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7
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101
Definition of information
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14
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134
Torque calculation for a compound pendulum
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15
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92
Net work and kinetic energy (pushing a wagon to accelerate it)
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78
Measurement of gastrocnemius muscle (attaches to the Achilles tendon) tightness with a special device
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18
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190
Why do we need conservation of energy for a rod accelerating due to magnetic force?
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15
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178
Solving linear charge density from volume charge density using Gauss' Law
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71
Solved problem: Particle trajectory with fixed angle between acceleration and velocity
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3
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131
Which statement is true? (Velocity and Acceleration of a Tennis Ball)
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2
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68
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Discontinuous voltage graph for bullet going through metal coils
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Another method for Continuous Charge Distributions Electric Potential problem
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117
B-field for a half-infinitely long wire
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9
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105
Manometer Force analysis
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2
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Kinematics vs Energy Approach (work done on an accelerating car by the engine)
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11
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Max speed of proton in cyclotron
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7
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Finding velocity for projectile given distances and launch angle
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3
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111
Graphing electric potential for two positive charges
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16
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140
Fictitious forces on a rigid body
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9
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150
Which system to apply conservation of momentum to?
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107
How do I find way of comparing the density of the Earth and the Moon?
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9
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143
Simple harmonic motion for an electric dipole in a uniform electric field
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1
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Electrostatics homework problem help
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12
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544
Integrating electric field of rod
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25
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I cannot work out constants a and b -- please help
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4
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132
Dynamic circular motion
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6
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Work is done against friction
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11
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Average force when a bouncy ball collides with surface
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23
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Atmospheric muons' lifetime
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11
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Finding equivalent capacitance
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6
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Standing wave, phase and antiphase
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7
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170
Difference in Wave Phase Question
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8
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Volume-pressure equation for an expanding ideal gas
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10
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165
Vector equations for adding speeds while switching frames of reference in Galilean physics
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17
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701
Calculate the distance a projectile travels using a rough approximation (Hooke's Law) for a slingshot
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2
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35
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Determining if a pipe is open or closed from given the resonant frequencies
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9
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When is power constant in this scenario?
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25
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Ideal gas problem -- What is the volume of the gas when its temperature is maximum?
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What is the electric field strength inside the capacitor?
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What exactly is wrong here? (F=ma when Force and acceleration are zero)
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The Physics of Light and Sound
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8
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181
Areal velocity formula
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2
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172
Heating up of tyres on the road
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30
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Proving SHM for charged spring mass system in electric field
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2
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127
Electric field at surface of lead-208 nucleus
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2
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134
Unit conversion question
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11
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When is Torricelli’s Law an Approximation?
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370
Springs: Force vs. Energy
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2
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Finding value of unknown charge
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The Mass of a Black Hole versus its volume
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Given a Constant Acceleration magnitude of g/4, Find the value of t
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6
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166
Using Kirchhoff's law, deduce the value and direction of the current
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6
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192
Circular Motion with Decreasing Radius
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8
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189
Rotation and torque about an accelerating point
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6
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172
Conductor rolling down an inclined plane in a vertical B-field
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32
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260
Why optical pyrometer gives a low reading?
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19
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192
Force between 2 point charges in VECTOR format (x i + y j + z k)
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17
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Coordinates of a point on a rotating wheel
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3
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190
Perfectly elastic collision between two electrons in ⊥ B-field
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6
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189
Shannon Entropy -- Calculate the information content of a DNA base pair
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5
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Magnetic Field Due to a Curved Wire Segment
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4
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Pulley with friction, how to get the friction in the pulley?
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23
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Finding the weight of an object submerged in water
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17
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Electric field due to n charges
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6
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Magnetic Field Surrounding a Straight Conductor
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2
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Unbalanced 3 phase Load - Calculate Resistance R on ph. c that leads to equivalent power in both 3 and 4 wire scenarios (ph. a and b are capacitive)
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7
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290
Find the tangential velocity of a rolling sphere with respect to the ground
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10
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260
Get the smallest value of an applied force on a body to maintain equilibrium
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8
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The patient is myopic
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Finding percentage and absolute uncertainties
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164
Electric field due to two charges
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16
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Pan suspended by a spring (Energy + SHM)
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20
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Doubling the Thermal Energy of a Frozen Chocolate Bar
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5
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Interpolate between 2 impact points only given the throw angles
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6
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198
Electron gun question
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6
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Determine expressions for the following in terms of M, X, D, h and g
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30
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Struggling to rearrange a formula to find c
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22
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269
Specific Heat Capacity of a metal bar placed into water
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4
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Work calculation for lifting a Tetrahedron-shaped object from the water
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2
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37
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Doing experiment to find the authenticity of Archimedes' law
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13
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263
Kids on a merry-go-round & Relative Motion
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25
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391
Experimental Design: Pulley and Mass Hangers
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30
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406
Find elastic energy in the compressed spring.
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12
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218
A cart collides with a bumper -- Find the final displacements, etc.
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15
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242
Magnetic and Electric Fields problem
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4
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183
Confused as to how heat can be lost to the surroundings (putting ice into water)
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11
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238
Find the electric field of a long line charge at a radial distance [Solved]
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1
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204
Angle of the principal axes
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9
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254
Force on a cyclist
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4
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251

Intro Physics Homework Help

Get introductory physics homework help, step by step from mentors. We do not give answers but guide you to it with your effort.

This is for algebra and calculus based general physics homework. Usually this is high school and undergraduate level problems.

Please use the template when asking for help, include all information and provide a reasonable attempt at a solution.

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